Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition

H. S. Chauhan, Masato Murakami

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.

Original languageEnglish
Pages (from-to)48-53
Number of pages6
JournalMaterials Science and Engineering B
Volume65
Issue number1
DOIs
Publication statusPublished - 1999 Oct 29
Externally publishedYes

Fingerprint

Superconducting materials
critical current
current density
Electrons
augmentation
Chemical analysis
electrons

Keywords

  • Critical current density
  • Isothermal growth
  • Nd-Ba-Cu-O
  • Nd422 refinement
  • Oxygen-controlled-melt-growth (OCMG) process
  • Peak effect
  • Pt and CeO addition

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

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title = "Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition",
abstract = "We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10{\%} Nd4Ba2Cu2O10 + 0.5 wt{\%} Pt + 1.0 wt{\%} CeO2 in 0.1{\%} O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.",
keywords = "Critical current density, Isothermal growth, Nd-Ba-Cu-O, Nd422 refinement, Oxygen-controlled-melt-growth (OCMG) process, Peak effect, Pt and CeO addition",
author = "Chauhan, {H. S.} and Masato Murakami",
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T1 - Enhancement of J(c) by refinement of Nd4Ba2Cu2O10 particles in OCMG processed Nd-Ba-Cu-O system with Pt and CeO2 addition

AU - Chauhan, H. S.

AU - Murakami, Masato

PY - 1999/10/29

Y1 - 1999/10/29

N2 - We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.

AB - We have melt-grown the Nd-Ba-Cu-O superconductor from the precursor with a composition of NdBa2Cu3O(y) + 10% Nd4Ba2Cu2O10 + 0.5 wt% Pt + 1.0 wt% CeO2 in 0.1% O2-Ar environment. A combined addition of Pt and CeO2 has resulted in the refinement of Nd4Ba2Cu2O10 (Nd422) particles down to submicron size as revealed by optical and transmission electron microscopic observations. A large enhancement of critical current density reaching 105 A cm-2 in a self field at 77 K has been accomplished as a result of fine dispersion of Nd422.

KW - Critical current density

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